30111220101212 has 6 divisors (see below), whose sum is σ = 52694635177128. Its totient is φ = 15055610050604.

The previous prime is 30111220101187. The next prime is 30111220101227. The reversal of 30111220101212 is 21210102211103.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3763902512648 + ... + 3763902512655.

It is an arithmetic number, because the mean of its divisors is an integer number (8782439196188).

Almost surely, 2^{30111220101212} is an apocalyptic number.

It is an amenable number.

30111220101212 is a deficient number, since it is larger than the sum of its proper divisors (22583415075916).

30111220101212 is a wasteful number, since it uses less digits than its factorization.

30111220101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527805025307 (or 7527805025305 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 30111220101212 its reverse (21210102211103), we get a palindrome (51321322312315).

The spelling of 30111220101212 in words is "thirty trillion, one hundred eleven billion, two hundred twenty million, one hundred one thousand, two hundred twelve".